1 files changed, 124 insertions, 0 deletions
diff --git a/gui/source/gui_help.cpp b/gui/source/gui_help.cpp
new file mode 100644
index 0000000..66ca955
--- /dev/null
+++ b/gui/source/gui_help.cpp
@@ -0,0 +1,124 @@
+/**
+ * @file gui_help.cpp
+ * @brief Defines the "Help" menu and provides its functionality.
+ *
+ * Copyright (C) 2022 Clyne Sullivan
+ *
+ * Distributed under the GNU GPL v3 or later. You should have received a copy of
+ * the GNU General Public License along with this program.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "imgui.h"
+#include "ImGuiFileDialog.h"
+
+#include <cstdlib>
+#include <iostream>
+#include <string>
+#include <thread>
+
+void log(const std::string& str);
+
+static bool showDownloadFirmware = false;
+static bool showHelp = false;
+static std::string firmwareFile;
+
+static void helpDownloadThread();
+
+void helpRenderMenu()
+{
+    if (ImGui::BeginMenu("Help")) {
+        if (ImGui::MenuItem("Open wiki...")) {
+#ifdef STMDSP_WIN32
+            system("start "
+#else
+            system("xdg-open "
+#endif
+                "https://code.bitgloo.com/clyne/stmdspgui/wiki");
+        }
+
+        if (ImGui::MenuItem("Download firmware...")) {
+            showDownloadFirmware = true;
+        }
+
+        ImGui::Separator();
+        if (ImGui::MenuItem("About")) {
+            showHelp = true;
+        }
+
+        ImGui::EndMenu();
+    }
+}
+
+void helpRenderDialog()
+{
+    if (showDownloadFirmware) {
+	showDownloadFirmware = false;
+        ImGuiFileDialog::Instance()->OpenDialog(
+            "ChooseFileFW", "Choose Firmware File", ".hex", ".", 1, nullptr, ImGuiFileDialogFlags_Modal);
+    }
+
+    if (ImGuiFileDialog::Instance()->Display("ChooseFileFW",
+                                             ImGuiWindowFlags_NoCollapse,
+                                             ImVec2(460, 540)))
+    {
+        if (ImGuiFileDialog::Instance()->IsOk()) {
+            firmwareFile = ImGuiFileDialog::Instance()->GetFilePathName();
+#ifdef STMDSP_WIN32
+            size_t i = 0;
+            while ((i = firmwareFile.find('\\', i)) != std::string::npos) {
+                firmwareFile.replace(i, 1, "\\\\");
+                i += 2;
+            }
+#endif
+
+	    std::thread(helpDownloadThread).detach();
+        }
+
+        ImGuiFileDialog::Instance()->Close();
+    }
+
+    if (showHelp) {
+        ImGui::Begin("help");
+
+        ImGui::Text("stmdspgui\nCompiled on " __DATE__ ".\n\nWritten by Clyne Sullivan.\n");
+
+        if (ImGui::Button("Close")) {
+            showHelp = false;
+        }
+
+        ImGui::End();
+    }
+
+    if (!firmwareFile.empty()) {
+    	ImGui::Begin("Downloading");
+
+	ImGui::Text("Downloading firmware to device...");
+
+	ImGui::End();
+    }
+}
+
+void helpDownloadThread()
+{
+    std::string command (
+#ifdef STMDSP_WIN32
+        "openocd\\bin\\openocd.exe"
+#else
+	"openocd"
+#endif
+	" -f openocd.cfg -c \"program $0 reset exit\"");
+
+    command.replace(command.find("$0"), 2, firmwareFile);
+
+    std::cout << "Run: " << command << std::endl;
+
+    if (system(command.c_str()) == 0) {
+	log("Programming finished.");    
+    } else {
+    	log("Error while programming device!");
+    }
+
+    firmwareFile.clear();
+}
+